You are on the beta website, which uses the main database but with a newer version of the code to test new features.

Revision History
for The Linux Programming Interface: A Linux and UNIX System Programming Handbook

Revision ID	User	Note	Date
#26811	cloverfield	https://nostarch.com/tlpi—cloverfield	2020-09-22 08:12:21
#26810	cloverfield	https://en.wikipedia.org/wiki/The_Linux_Programming_Interface—cloverfield	2020-09-22 07:50:37

Revision Historyfor WorkThe Linux Programming Interface: A Linux and UNIX System Programming Handbook